Path: utzoo!bnr-vpa!bnr-fos!bmers58!mlord From: mlord@bmers58.UUCP (Mark Lord) Newsgroups: comp.sys.ibm.pc Subject: Re: DMA controller chip error Keywords: Fastback, DMA Message-ID: <566@bmers58.UUCP> Date: 28 Nov 89 17:13:23 GMT References: <941@ac.dal.ca> <3686@orion.cf.uci.edu> Reply-To: mlord@bmers58.UUCP (Mark Lord) Organization: Bell-Northern Research, Ottawa, Canada Lines: 29 In article zeeff@b-tech.ann-arbor.mi.us (Jon Zeeff) writes: >In article <3686@orion.cf.uci.edu> mrichey@orion.oac.uci.edu (Mike Richey) writes: >>What's nice about fastback is that it utilizes two DMA channels to transfer >>data. One channel to read from the hard disk, and a second to write to the >>floppy. When the hard disk and diskette drive leds are lit, it's not just > >Not on an AT. The AT just doesn't have the hardware needed to do dma >from the hard disk. >-- >Jon Zeeff >Branch Technology Garbage. The IBM PC, XT, and AT models all have DMA hardware specifically for this purpose, as do virtually all clones of any of these computers. And man.. does FastBack ever fly on it! -Mark -- +----------------------------------------+----------------------------+ | Mark S. Lord | Hey, It's only MY opinion. | | ..!utgpu!bnr-vpa!bnr-fos!mlord%bmers58 | Feel free to have your own.| +----------------------------------------+----------------------------+